You press the power button and nothing happens. Or the screen stays black. Or it starts and immediately shuts off again. It is one of the most stressful things that can happen during a working day, especially if you have deadlines and your files are on that machine.
Before you assume the worst, there are a few things worth checking.
Check the obvious first
It sounds too simple, but start with the basics. Is the power cable plugged in properly at both ends? If you are using a laptop, is the charger connected and is the charging light on? Try a different power outlet. If you are using a power strip or extension lead, check that it is switched on.
For desktops, make sure the power switch on the back of the computer, if there is one, is in the on position. These can get bumped accidentally.
Try a hard reset
If your computer has power but will not start properly, a hard reset can sometimes clear the issue.
For a laptop, unplug the charger. If the battery is removable, take it out. Hold the power button down for 15 to 20 seconds. Then reconnect the charger, put the battery back in if you removed it, and try turning it on again.
For a desktop, unplug the power cable from the back of the machine. Hold the power button for 15 to 20 seconds. Plug the cable back in and try again.
This drains any residual power and resets the hardware, which resolves a surprising number of startup problems.
Check the screen
Sometimes the computer is actually on but the screen is not displaying anything. Listen for sounds. Can you hear fans spinning, a hard drive clicking or a startup chime? If so, the computer may be running but the display is not working.
If you are using an external monitor, check that it is turned on and that the cable connecting it to the computer is secure. Try a different cable if you have one. For laptops, try pressing the brightness keys in case the screen brightness was turned all the way down.
Look for warning signs
If the computer starts briefly and then shuts off, or if you hear beeping sounds, those are signs of a hardware problem. A single beep is often normal, but repeated beeps or patterns of beeps usually indicate a specific fault like a memory or graphics card issue.
If the computer turns on but gets stuck on a blue screen with an error message, note down what the screen says. That information is useful for whoever ends up diagnosing the problem.
If the computer smells like burning or something electrical, stop immediately. Unplug it and do not try to turn it on again. That is a hardware failure that needs professional attention.
When to get help
If none of these steps get your computer working, the problem is likely hardware related and needs a professional diagnosis. It could be a failed power supply, a dead battery, a faulty motherboard or a failing hard drive.
The important thing is not to keep forcing it. Repeatedly trying to start a computer with a failing drive can make data recovery harder or impossible.
Recloud diagnoses and resolves hardware issues for business devices. If your machine will not start, get in touch and we will help you get back up and running as quickly as possible, and make sure your data is safe in the process.